netdev - [PATCH 1/2] net: ethernet: mvneta: Do not error out in non serdes modes

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Date:   Wed, 24 Jun 2020 09:00:44 +0200
From:   Sascha Hauer <s.hauer@...gutronix.de>
To:     netdev@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        kernel@...gutronix.de, Russell King <linux@...linux.org.uk>,
        Sascha Hauer <s.hauer@...gutronix.de>
Subject: [PATCH 1/2] net: ethernet: mvneta: Do not error out in non serdes modes

In mvneta_config_interface() the RGMII modes are catched by the default
case which is an error return. The RGMII modes are valid modes for the
driver, so instead of returning an error add a break statement to return
successfully.

This avoids this warning for non comphy SoCs which use RGMII, like
SolidRun Clearfog:

WARNING: CPU: 0 PID: 268 at drivers/net/ethernet/marvell/mvneta.c:3512 mvneta_start_dev+0x220/0x23c

Signed-off-by: Sascha Hauer <s.hauer@...gutronix.de>
---
 drivers/net/ethernet/marvell/mvneta.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index af60001728481..c4552f868157c 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -3571,7 +3571,7 @@ static int mvneta_config_interface(struct mvneta_port *pp,
 				    MVNETA_HSGMII_SERDES_PROTO);
 			break;
 		default:
-			return -EINVAL;
+			break;
 		}
 	}
 
-- 
2.27.0